THUMOS14 [1]} contains untrimmed videos with 20 classes. We use the 200 videos in validation set for training and the 213 videos in testing set for evaluation.
ActivityNet13 [2]} is a large-scale dataset with 200 categories. We train on the trainining set with \(10,024\)  videos and test on validation set with \(4,926\)  videos. We follow the standard evaluation protocol by reporting mean Average Precision (mAP) values under different temporal intersection over union (tIoU) thresholds.
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